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Hello community,

here is the log from the commit of package ffmpeg-4 for openSUSE:Factory 
checked in at 2021-09-03 21:25:32
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Comparing /work/SRC/openSUSE:Factory/ffmpeg-4 (Old)
 and      /work/SRC/openSUSE:Factory/.ffmpeg-4.new.1899 (New)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Package is "ffmpeg-4"

Fri Sep  3 21:25:32 2021 rev:43 rq:914535 version:4.4

Changes:
--------
--- /work/SRC/openSUSE:Factory/ffmpeg-4/ffmpeg-4.changes        2021-08-12 
09:02:12.242099543 +0200
+++ /work/SRC/openSUSE:Factory/.ffmpeg-4.new.1899/ffmpeg-4.changes      
2021-09-03 21:25:38.418143491 +0200
@@ -1,0 +2,7 @@
+Fri Aug 27 07:09:15 UTC 2021 - Alynx Zhou <alynx.z...@suse.com>
+
+- Add ffmpeg-CVE-2021-38171.patch: Backport from upstream to fix
+  adts_decode_extradata in libavformat/adtsenc.c in FFmpeg 4.4
+  does not check the init_get_bits return value (bsc#1189724).
+
+-------------------------------------------------------------------

New:
----
  ffmpeg-CVE-2021-38171.patch

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Other differences:
------------------
++++++ ffmpeg-4.spec ++++++
--- /var/tmp/diff_new_pack.Q8HwGn/_old  2021-09-03 21:25:39.006144104 +0200
+++ /var/tmp/diff_new_pack.Q8HwGn/_new  2021-09-03 21:25:39.010144107 +0200
@@ -120,6 +120,7 @@
 Patch9:         ffmpeg-4.4-CVE-2020-22046.patch
 Patch10:        ffmpeg-CVE-2021-33815.patch
 Patch11:        ffmpeg-CVE-2021-38114.patch
+Patch12:        ffmpeg-CVE-2021-38171.patch
 BuildRequires:  ladspa-devel
 BuildRequires:  libgsm-devel
 BuildRequires:  libmp3lame-devel


++++++ ffmpeg-CVE-2021-38171.patch ++++++
>From 9ffa49496d1aae4cbbb387aac28a9e061a6ab0a6 Mon Sep 17 00:00:00 2001
From: maryam ebrahimzadeh <me22...@outlook.com>
Date: Wed, 4 Aug 2021 16:15:18 -0400
Subject: [PATCH] avformat/adtsenc: return value check for init_get_bits in
 adts_decode_extradata

As the second argument for init_get_bits (buf) can be crafted, a return value 
check for this function call is necessary.
'buf' is  part of  'AVPacket pkt'.
replace init_get_bits with init_get_bits8.

Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
 libavformat/adtsenc.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/libavformat/adtsenc.c b/libavformat/adtsenc.c
index ba15c0a724..3924e678d9 100644
--- a/libavformat/adtsenc.c
+++ b/libavformat/adtsenc.c
@@ -53,9 +53,11 @@ static int adts_decode_extradata(AVFormatContext *s, 
ADTSContext *adts, const ui
     GetBitContext gb;
     PutBitContext pb;
     MPEG4AudioConfig m4ac;
-    int off;
+    int off, ret;
 
-    init_get_bits(&gb, buf, size * 8);
+    ret = init_get_bits8(&gb, buf, size);
+    if (ret < 0)
+        return ret;
     off = avpriv_mpeg4audio_get_config2(&m4ac, buf, size, 1, s);
     if (off < 0)
         return off;
-- 
2.33.0

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